RDP Plenum Reinforcing Inserts™ 99.5-03

Part Number:
RDPPRI

Manufacturer:

$52.58
$42.86
(You save $9.72 )
(193 reviews) Write a Review
RDP Plenum Reinforcing Inserts™ 99.5-03

RDP Plenum Reinforcing Inserts™ - Ford 7.3L 99.5-03

These billet 7075 Aluminum plenum inserts are a Riffraff Diesel original design and are patent pending. They are made to allow you to clamp down as hard as needed with T-bolt clamps so that you don't have any boost leaks. Fix your bent and crushed stock plenums with our Inserts as well. This is a budget friendly option to buying full billet plenums. Easy install, no special tools needed.

These were designed so as to add the least restriction possible while providing more than adequate structure for clamping. The Plenum Inserts have been machined to within .164" of the OEM diameter so there will not be any measurable affect on EGT's or cfm flow.

These are sold in a pair.

Riffraff Diesel Performance is committed to 100% Made in the USA on this product. All materials are from USA resources. Every machining step is performed in the USA. Every component is assembled in the USA.

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1999.5-2003 Super Duty, and Excursion Powerstrokes Will Not fit Early 99
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  • 5
    plenum

    Posted by dave cleland on Sep 13th 2023

    fit perfect

  • 5
    Plenum reinforce sleeves

    Posted by Joel cardillo on Jul 3rd 2023

    Inexspensive quality upgrade. Every purchase i have made has been a quality product and resonably priced. I will continue to use their products.

  • 5
    Plenum inserts

    Posted by Robert Cheung on May 18th 2023

    These worked out great, my plenums were a little bent up and I didn't want to buy new ones. I just knocked them in problem solved.

  • 5
    Plenum inserts

    Posted by Unknown on Jan 30th 2023

    My second pair installed easily

  • 5
    Inserts

    Posted by Jim Chrisawn on Nov 2nd 2022

    Precision fit and finish where it is really needed. Excellent

  • 5
    RDP PLENUM REINFORCING INSERTS™ 99.5-03

    Posted by SCOTT ROBBINS on Sep 28th 2022

    Great to prevent deforming the weak factory plenums!

  • 5
    Plenum inserts

    Posted by Neil Watson on Sep 22nd 2022

    GREAT quality. Fit like a glove. Allows for strong clamp pressure.

  • 5
    Plenum rings

    Posted by William James on Sep 20th 2022

    Very happy with the purchase. Thanks Riff Raff.

  • 5
    RDP PLENUM REINFORCING INSERTS™ 99.5-03

    Posted by MikeFromMT on Jul 9th 2022

    These slip right inside the factory plenum so that you can get a tighter clamping force on the plenum boots, very easy to install and they give much more strength to the very soft factory plenums.